Patent · US Active

Method for determining the wear state

US10787776B2 · kind B2 · utility

2Cited by

11References

29Claims

0Family size

Assignee

Wirtgen GmbH

Inventors

Stefan Wagner · Bad Honnef, DE
Cyrus Barimani · Rübhausen, DE
Günter Hähn · Rübhausen, DE

Key dates

Filing date	Jan 16, 2018
Grant date	Sep 29, 2020
Priority date	—
Expiry date	Nov 23, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG01N3/58
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

This invention relates to a method for determining a wear state of a chisel, a chisel holder, and/or a chisel holder replacement system equipped with a chisel and chisel holder. For this method to give the user qualitative and quantitative information about the wear, according to one embodiment of this invention, a position of at least one point of the chisel and/or the chisel holder is determined by a contactless measurement method and a corresponding measurement result is compared in a switching unit to a reference value stored in a memory device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.